1·She must have some ulterior motive for being nice to me—what does she really want?
她对我这么好，一定别有用心—她到底想干什么呢？
—— 《牛津词典》
2·I have an ulterior motive in offering to help you.
我主动提出要帮助你是有私心的。
—— 《牛津词典》
3·Sheila had an ulterior motive for trying to help Stan.
希拉设法帮助斯坦是别有用心。
—— 《柯林斯英汉双解大词典》
4·But I had an ulterior motive.
但我还有一个私底下的目的。
5·They have no ulterior motive.
他想见她是别有用心的。
6·There was no ulterior motive in his proposal.
他的建议里没有不可告人的动机。
7·There was no ulterior motive in his proposal.
他想见她是别有用心的。
8·She definitely had an ulterior motive in offering to help.
她主动提出帮忙，肯定有不可告人的动机。
9·People thought he must have an ulterior motive for wanting to help.
人们认为他想提供帮助一定是别有用心。
10·“What you mentioned is purely fictitious and has an ulterior motive, ” he said.
他说：“你所提到的完全是假想的，动机不明。”